Method for distributing distributed physical cell identity in LTE wireless access network
A physical cell identification and wireless access network technology, applied in wireless communication, network planning, electrical components, etc., can solve problems such as multiple manual interventions and unsuitable LTE networks, so as to improve service quality, reduce the number of times, and reduce manual The effect of the intervention
Inactive Publication Date: 2011-05-25
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
This centralized method requires too much manual intervention, such as the startup tool generates the PCI and sends it to the OSS, assigns the PCI to a new cell, etc.
This method is obviously not suitable for future LTE networks with increasing numbers of ENBs and cells
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[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0031] figure 1 It is a flowchart of a method for distributing distributed physical cell identifiers in an LTE wireless access network according to an embodiment of the present invention; figure 1 Said, said method comprises:
[0032] Step A, OAM configures the PCI list for the ENB newly added to the network;
[0033] In the existing ENB network, after the newly joined ENB detects the OAM (Operation Administration Maintenance) to which it belongs, it sends its own information such as type, identification and other related data to the OAM, and then passes the security After verification, the OAM sends the PCI list to the newly joined ENB in the network. The existing E...
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The invention discloses a method for distributing a distributed physical cell identity in a long term evolution (LTE) wireless access network, which comprises the steps of: step A, Operation administration maintenance (OAM) configures a physical cell identity (PCI) list for an evolved node B (ENB) which is newly added into the network; step B, the ENB which is newly added into the network acquires PCI information used by all neighboring cells of the ENB; and step C, the ENB which is newly added into the network deletes PCIs used by all neighboring cells from the PCI list, judges whether PCI values are still remained in the PCI list, if so, randomly selects one PCI value as the PCI of a target cell that the ENB belongs to, and otherwise, reports the abnormality to the OAM. The method for distributing the distributed physical cell identity in the LTE wireless access network promptly distributes the PCI for the target cell of the ENB which is newly added into the network in a way of negotiating with ENBs existing in the network, meets a principle of PCI distribution, takes the synchronization of PCI information among cells into full consideration, reduces the times of cell reselection and improves service quality of the network.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for allocating distributed physical cell identifiers in an LTE wireless access network. Background technique [0002] With the continuous development of network technology and communication technology, the mobile communication network has gradually evolved from the current 3G network to 4G, and the LTE network is a technology in the process of this long-term evolution. The LTE (Long Term Evolution, long-term evolution) network has attracted much attention due to its high data rate, low delay, and packet transmission. It is mainly composed of an evolved node B (eNodeB or ENB) and an access gateway (AGW). Compared with the traditional 3G network, the ENB replaces the original NodeB, RNC and other network elements, and the ENBs are interconnected in a grid mode through the X2 interface, so the LTE network presents a flat structure, so in the case of covering ...
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IPC IPC(8): H04W16/12H04W24/02
Inventor 李文璟熊翱刘艳光芮兰兰王颖陈兴渝亓峰
Owner BEIJING UNIV OF POSTS & TELECOMM